在同一平面内画5条直线最多可有几个交点,n条呢甲车行的路程比乙车多 而乙车用的时间比甲车少 则甲、乙两车速度比为7:10。请判断对错There are eighty language teachers in a university.Six-two teachers ca
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在同一平面内画5条直线最多可有几个交点,n条呢甲车行的路程比乙车多 而乙车用的时间比甲车少 则甲、乙两车速度比为7:10。请判断对错There are eighty language teachers in a university.Six-two teachers ca
在同一平面内画5条直线最多可有几个交点,n条呢
甲车行的路程比乙车多 而乙车用的时间比甲车少 则甲、乙两车速度比为7:10。请判断对错
There are eighty language teachers in a university.Six-two teachers can speak English,and thirty-five teachers can speak French.We can know________ teachers can only speak English.
The perimeter of Rectangle A (长方形A的周长) is 70 meters.If the length (长) is increased (增加) by 10\3 and the width (宽) is reduced (减少)by 2\5,we get Rectangle B.But the perimeter of Rectangle B remains (保持) the same.So the area (面积）of Rectangle A is_________m2.
在同一平面内画5条直线最多可有几个交点,n条呢甲车行的路程比乙车多 而乙车用的时间比甲车少 则甲、乙两车速度比为7:10。请判断对错There are eighty language teachers in a university.Six-two teachers ca
在同一平面内画5条直线最多可有几个交点,n条呢
在同一平面内画5条直线最多可有10个交点,n条直线最多可有n(n-1)/2个交点呢
甲车行的路程比乙车多 ,而乙车用的时间比甲车少 ,则甲、乙两车速度比为7:10.请判断对错
这题可能没写完整,多和少后面的数量没写
There are eighty language teachers in a university.Sixty-two teachers can speak English,and thirty-five teachers can speak French.We can know_forty-five_ teachers can only speak English.
62-(62+35-80)=45
The perimeter of Rectangle A (长方形A的周长) is 70 meters.If the length (长) is increased (增加) by and the width (宽) is reduced (减少)by ,we get Rectangle B.But the perimeter of Rectangle B remains (保持) the same.So the area (面积）of Rectangle A is_________m2.
这题可能没写完整,两个by后应该有数字